How do you add a note to explain a line of code in JavaScript?

Why should comments be kept up-to-date with the code?

A). To ensure they do not cause syntax errors

B). To prevent the code from running

C). To make the code easier to understand for others

D). To increase code execution speed

Which of the following is a valid single-line comment in JavaScript?

A). // This is a comment

B). /* This is a comment */

C).

D). # This is a comment

How can single-line comments help during debugging?

A). By highlighting errors

B). By temporarily disabling code

C). By changing code execution

D). By improving performance

How do you write a single-line comment in JavaScript?

A). # This is a comment

B). // This is a comment

C). /* This is a comment */

D).

Which of the following will be ignored by the JavaScript interpreter?

A). Variable declarations

B). Function definitions

C). Single-line comments

D). Keywords

What is the purpose of single-line comments in code?

A). To add executable code

B). To increase execution speed

C). To explain and document the code

D). To replace code

What will be the output of console.log('Hello World!'); // This is a comment?

A). Hello World!

B). Syntax Error

C). This is a comment

D). Undefined

Can single-line comments be used to add TODO notes in code?

A). Yes

B). No

C). Only in certain cases

D). Only in multi-line comments

Which is the correct way to comment out the rest of a line after a statement in JavaScript?

A). # rest of line

B). // rest of line

C). /* rest of line */

D).

How can you temporarily disable a piece of code without deleting it?

A). By commenting it out using //

B). By placing it in a string

C). By removing it from the file

D). By placing it in a function